Malachi 4:3-7

And ye shall tread down the wicked; for they shall be ashes under the soles of your feet in the day that I shall do this, saith the LORD of hosts.

Remember ye the law of Moses my servant, which I commanded unto him in Horeb for all Israel, with the statutes and judgments.

Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the LORD:

And he shall turn the heart of the fathers to the children, and the heart of the children to their fathers, lest I come and smite the earth with a curse.